Located in the Green Mountains of Northfield, VT, Cabot Hosiery Mills is the home of Darn Tough Socks. Their goal, “producing the best possible socks the world has to offer”, is backed up with with an unconditional lifetime guarantee. By pairing the highest quality materials with true craftsmanship, Darn Tough socks will stand both the test of time and the toughest conditions or they will replace them, no questions asked.